Package Contents:<br />5 x Battery Case Holder (Batteries Are Not Included!)<br /><br />Material:ABS<br />Color: Black<br />Weight: 26g<br />Size: Approx. 78x79x24mm<br /><br />Features:<br />Made of ABS material， lightweight， convenient to carry<br />Easy to install<br />Suitable for 4x18650 batteries<br />You can use this case with your own battery to form power system supply